(19)
(11) EP 2 333 459 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
21.09.2011 Bulletin 2011/38

(43) Date of publication A2:
15.06.2011 Bulletin 2011/24

(21) Application number: 10015097.8

(22) Date of filing: 29.11.2010
(51) International Patent Classification (IPC): 
F25B 40/00(2006.01)
F25B 9/00(2006.01)
 F25B 7/00(2006.01)
F25B 41/06(2006.01)
(84) Designated Contracting States:
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated Extension States:
BA ME

(30) Priority: 30.11.2009 JP 2009272410

(71) Applicant: Sanyo Electric Co., Ltd.
Osaka 570-8677 (JP)

(72) Inventors:
  • Kobayashi, Susumu
    Moriguchi City Osaka 570-8677 (JP)
  • Yoshida, Fukuji
    Moriguchi City Osaka 570-8677 (JP)
  • Yuzawa, Jiro
    Moriguchi City Osaka 570-8677 (JP)
  • Sato, Hiroyuki
    Moriguchi City Osaka 570-8677 (JP)

(74) Representative: Glawe, Delfs, Moll 
Patent- und Rechtsanwälte Postfach 26 01 62
80058 München
80058 München (DE)

   


(54) Refrigerating apparatus


(57) There is disclosed a refrigerating apparatus which can more efficiently cool the inside of a chamber to an ultralow temperature. In a refrigerating apparatus R1 which condenses a refrigerant discharged from a compressor 14, reduces a pressure of the refrigerant by a capillary tube 18 and evaporates the refrigerant by an evaporator 13 to exert a cooling function, the capillary tube 18 is passed through a suction piping line 32 through which the refrigerant returning from the evaporator 13 to the compressor 14 flows, to constitute a double tube structure. Furthermore, the suction piping line 32 (a piping line 32A) formed in the double tube structure by passing the capillary tube 18 therethrough is surrounded with an insulating material 35.







Search report